ZyXEL Communications P-2812HNU-51c User Manual page 334

Appendix A Network Troubleshooting
Use the -a parameter to display all possible connections to your device, not just
the ones that are currently in use:
C:\>netstat -a
Active Connections
Proto
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
TCP
C:\>
The following table describes the three entries in the output example above:
Table 115 netstat -a Command Output
OUTPUT
TCP
COMPUTERA:http
COMPUTERA:0
LISTENING
TCP
COMPUTERA:http
172.16.1.29:4036
ESTABLISHED
TCP
COMPUTERA:2744
NAS:microsoft-ds
ESTABLISHED
334
Local Address
COMPUTERA:http
COMPUTERA:http
COMPUTERA:2744
COMPUTERA:5152
COMPUTERA:5152
COMPUTERA:5354
COMPUTERA:27015
COMPUTERA:40000
COMPUTERA:40000
COMPUTERA:netbios-ssn
COMPUTERA:4177
COMPUTERA:4178
COMPUTERA:4180
COMPUTERA:4182
COMPUTERA:4317
COMPUTERA:4539
COMPUTERA:netbios-ssn
COMPUTERA:netbios-ssn
DESCRIPTION
A web server is available on COMPUTERA as an HTTP
service is in a LISTENING state.
A computer with an IP address of 172.16.1.29 is accessing
the web service on the COMPUTERA.
COMPUTERA has established a TCP/IP NETBIOS
connection (microsoft-ds) with a NAS device.
Foreign Address
COMPUTERA:0
172.16.x.x:4036
NAS:microsoft-ds
172.16.x.x.ZyXEL.com:0
localhost:4067
172.16.x.x.ZyXEL.com:0
172.16.x.x.ZyXEL.com:0
localhost:0
localhost:1120
172.16.x.x.ZyXEL.com:0
172.16.x.x:1155
172.16.x.x:1155
172.16.x.x:1155
172.16.x.x:1025
NAS:microsoft-ds
NAS:microsoft-ds
172.16.x.x:0
172.16.x.x:0
P-2812HNU-51c User's Guide
State
LISTENING
ESTABLISHED
ESTABLISHED
LISTENING
CLOSE_WAIT
LISTENING
LISTENING
LISTENING
ESTABLISHED
LISTENING
ESTABLISHED
ESTABLISHED
ESTABLISHED
ESTABLISHED
ESTABLISHED
TIME_WAIT
LISTENING
LISTENING